What is the purpose of cleaning the three-way catalytic converter?
2 Answers
It can reduce the fuel consumption during vehicle operation, alleviate the issue of weak acceleration, prevent abnormal noises from the vehicle's exhaust pipe, and address the problem of unpleasant exhaust gas odors. Cleaning the three-way catalytic converter is essential and is one of the routine maintenance tasks for vehicles. More relevant information is as follows: The three-way catalytic converter plays a role in purifying vehicle emissions and is a crucial external purification device. Under the action of the three-way catalyst, harmful substances can be converted into carbon dioxide and water for emission. When vehicle exhaust fails to meet standards, cleaning the three-way catalytic converter has a relatively noticeable effect.
The car I used to drive always felt underpowered, and the fuel consumption kept soaring. Later, during a maintenance check, the mechanic suggested cleaning the three-way catalytic converter. After the cleaning, the engine responded much faster, acceleration became smoother, and the most noticeable change was the significant drop in fuel consumption. The three-way catalytic converter is located in the exhaust pipe and is specifically designed to treat harmful gases, such as carbon monoxide and nitrogen oxides, converting them into relatively safer substances like carbon dioxide. When carbon deposits accumulate too much, clogging the pores, the exhaust emissions exceed standards, making the car work harder and even potentially triggering the check engine light. Cleaning can restore its original function, reduce air pollution, and provide peace of mind when driving in the city. Long-term neglect of cleaning may lead to the complete failure of the three-way catalytic converter, and replacing it could cost thousands, which is not cost-effective at all. So, I clean it every one or two years as part of routine maintenance—it’s cost-effective and extends the lifespan of the part.
